Spring time brings higher water levels in the streams, brooks, and rivers in the area. This makes for a great opportunity to capture waterfalls and babbling brooks. The trick to these shots is a long shutter speed, which blurs the flowing water, giving it that silky smooth look. The effect will start to appear at around a 5 second exposure; the photo above is a 30 second exposure. To get exposures this long you will want to reduce your ISO (100), use a larger aperture (f11), and shoot in low-light. Typically it is best to shoot these photos in early morning or late evening. Adding a neutral density (ND) filter will allow you to shoot in brighter conditions. This photo was shot with a 10 stop ND filter at around 10am. Finally, long exposures such as this will require a tripod or resting the camera on a solid surface.